Is it possible for two different charts that use the same symbol in their DataSeries to share a common variable ? Does the concept of Global Variable exist in Ninja ?

trendisyourfriend 

Is it possible for two different charts that use the same symbol in their DataSeries to share a common variable ? Does the concept of Global Variable exist in Ninja ?

If I understand your question, the answer would be no. Two charts cannot communicate with one another. I suspect you have something else in mind such as an Indicator or Strategy. If this is the case, give more information and there may be a programming technique to get what youneed.

NJAMC 

If I understand your question, the answer would be no. Two charts cannot communicate with one another. I suspect you have something else in mind such as an Indicator or Strategy. If this is the case, give more information and there may be a programming technique to get what youneed.

I might have some ideas but if Global variables are not supported then i am not sure what to think. I/RT supports it very well. Let's take an easy task (in my mind), i use a SMA(8) on a Range chart and would like to pass the current value of this RangeChart(x).SMA(8) to another chart that is a tick chart for example. Is this possible ?

trendisyourfriend 

I might have some ideas but if Global variables are not supported then i am not sure what to think. I/RT supports it very well. Let's take an easy task (in my mind), i use a SMA(8) on a Range chart and would like to pass the current value of this RangeChart(x).SMA(8) to another chart that is a tick chart for example. Is this possible ?

If you are only trying to display the value, you are looking at a multi timeframe Indicator. The indicator would be applied to the "other chart". you wouldn't actually need the RangeChart open. This is not trivial, but can be done, and would need to be coded.

trendisyourfriend 

I might have some ideas but if Global variables are not supported then i am not sure what to think. I/RT supports it very well. Let's take an easy task (in my mind), i use a SMA(8) on a Range chart and would like to pass the current value of this RangeChart(x).SMA(8) to another chart that is a tick chart for example. Is this possible ?

You could just add both series to a single chart, apply the indicator to the range series but it plot it over top of the other tick series and hide the range series...If I understand what you want to do correctly.

I believe this video might help - NinjaTrader 7 Tips - Hidden Data Series - YouTube

trendisyourfriend 

Is it possible for two different charts that use the same symbol in their DataSeries to share a common variable ? Does the concept of Global Variable exist in Ninja ?

I haven't had the need tor two charts to talk to each other, but I get an indicator to talk to a strategy using this:

//### This is for External strategies.
//### Update() ensures this exposed variable is up to date, when external strategy Add()'s this indicator
public string TradeCommand {
get { Update(); return tradeCommand; }
Set { tradeCommand = value; }
}

And I get one indicator to share variables with another indicator like this:

public class GlobalChartVars {
public static Dictionary<string, string> chartIds = new Dictionary<string, string>();
public static Dictionary<string, string> SoundFiles = new Dictionary<string, string>();
}

I think the 2nd one should be able to share data between charts. I haven't tried it that way, but maybe that can give you some ideas.

- I have done some work in this space
- it is possible to share the values using globalvariable.dll (tradestation dll)
- I would do a cleanup of the code and post in elite downloads section soon.

The GlobalVariable.dll was great in TradeStation and NT 32bit. In 64bit NT the static class works.

Tarkus1 - you are correct. I did it sometime back and realized it would work only with 32 bit version of Ninja ( due to the dll being 32 bit).

probably static class might be the way to go in that case.

Thanks.